Coffee-pot



.1. DODGE.

Coffee Pot.

No. 105,051. Patented july 5, 1870 n. Firms. znfowumognpw, wmingnm n4 cA mann STATES.

Param* QFFIOE.l

DODGE, OF NEW ORLEANS, LOUISIANA.

Specification forming part of Letters Patent No. dated July 5, 1870.

To all whom @It may concer/u Be it known that I, JOHNSON DODGE, of New Orleans, in the parish of Orleans and State of Louisiana, have invented certain [mprovements in Coffee-Pots, of which the fol lowing is a specification, reference being had to the accompanying drawing.

My present invention relates to certain improvements upon the pot for which Letters Patent were granted to me, bearing date the 9th day of' November, 1869, and numbered 96,558; and consists, first, in the use of' a float,

vessel, b, within a cylindrical vessel, A, by

means of' an annular rim or ring connecting the upper edges ofl the two, so as to leave a steam-tight space or chamber, a, between the` vessels,as shown in Fig. 2. To the ,upper part of the vessel A I secure a cock, f, having a funnel, h, attached, and into orthrough which water is poured to occupy the' space a; and

through the ring which connects the two vessels I insert a cock, e, to permittheescape of' air when the space a is being'filledwith water, and a safety-valve, g, to prevent the pressure of the steam from becoming. sogre'atas to burst or rupture the pot. To the "vessel A, near its bottom, I apply a cock, c,through which steam is admitted from a boiler or other steam-generator, through the water, into-the upper part of the space or chamber a, Afor the purpose of heating the water," and Ialso provide another cock, d, by which {h otA water' may be drawn from the space a foruse. s vNear the bottom of the body I also 4applyjajfthi'rd cock, t', which extends through4 to the vessel b, and through which the contents of' said vessel may be drawn oi, as hereinafter described. To the center of the vessel b l secure along vertical tube, l, communicating at its lower .end with the space a, and into theiupperend of the vessel b I place a closely-tting dish, g, having a perforated bottom, and through the center of which the tube l passes, as shown in Fig. 2.

I next provide a cylindrical body, B, provided with atigh tl y-fittin g top and a perforated bottom, and also with a flange or rim on its lower end, which may be fitted tightly into the dish g, as shown in Fig. 2. The tube b is made of' sufficient length to reach nearly to the top of the body B, and it has placed upon its up- Yper end a cap or hood, n, the under side of# which is perforated, and also a perforated disk, o, as shown in Fig. 2. I alsofprovide a hollow ball or float, j, provided with. a long stem, k, and through the dishg`,`and thebotton and top of the body B, -I ,make vholes toreceive said stem, and before putting .the pottogether I place the iioat in vthe vesselfor chamber b, and pass the stem hup-through the body B when placed in positiomsothat its end proiects above the top Vof' thebody, as shown in Figs, 1 and 2, so that,when the liquid in the vessel Vb risesor falls, the stem will be caused to protrude more or less, and thus indicate at all times the amount or height of liquid contained lin thervessel. f

' In usingor operating my pot, the proper amountot' ground coffee is placed within the body B, and the top closed. rIhe cocks e and j' are then opened and the requisite amount of rWater poured in through the funnel h, and the cocks again closed. The cock c, which has been previously connected with the steamgenerator, is then opened, and the steam ad A mitted into and through the water, so as to occupy the upper portion of the space or chamber a. The steam passing through the water, and then remaining above and in contact with the same, heats it to the proper temperature, and at the same time forces it, (mixed with more or less steam,) up through the pipe l, against the under side of the hood fn, which deflects it outward and downward through the perforations ofthe hood and disk o, which latterdividesit into fine spray, in which f'orm,and still hot, it falls upon the coiiee-grains below. The spray, thus falling upon the coffee-grains, thoroughly saturates them, and then, percolating through the mass, falls into the vessel b, strongly impregnated with the flavor or essence ot' the coff'ee, and from whence it may be drawn ofi', through cock t', f'or use.

The liquid coffee thus produced is of great `strength, and in a perfectly clear condition,

entirelyfree from particles ofthe coffee-grain s, or other substances, and when deposited in the vessel b is kept hot for use by the surrounding steam and water in space a.

The object of the perforated dish or diaphragm gis to retain any particles of solid matter that may find their way through the bottom of body B.

Having thus described my invention, what 1 claim is- 1. In a steam coii'ee-maker, consisting of the vessels A, B, and b, constructed and arranged substantially as herein described, the oat j, with its indicating stem k, when arranged therein as shown and described, and for the purpose set forth.

2. In combination with the exterior vessel A, and theinterior vessel b, the funnel-mouthed cock h, applied to the Water-chamber between these vessels, substantially as and for the purpose set forth.

JOHNSON DODGE.

Witnesses: 4

L. W. APPLEGATE, JULIAN MICHEL., 

